Simple clutch and seeder using same

Abstract

The simple clutch comprises a driving shaft and a driven shaft sleeve, the driving shaft is rotationally connected with the driven shaft sleeve, the driving shaft is located in the driven shaft sleeve, and an annular clamping block is installed on the driving shaft; the device further comprises a rack, the driving shaft is rotationally installed on the rack, and the multiple driven shafts are arranged on the driving shaft in a sleeving mode. After the driven annular clamping block is shifted to slide on the driven shaft sleeve, the driven annular clamping block and the annular clamping block are connected in a clamped mode, under limiting of the limiting mechanism, the driven annular clamping block and the annular clamping block which are connected in a clamped mode are not prone to being separated again, and operation is easy and convenient. After the simple clutch is applied to the seeding machine, the driven annular clamping block can be meshed with the annular clamping block in various modes, so that the simple clutch performs meshing transmission, and when the seeding machine is used for coping with narrow land, the situation that multiple rotating wheels rotate at the same time for seeding, and consequently resource waste is caused is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of a simple clutch and a seed drill using the simple clutch, in particular to a simple clutch and a seed drill using the simple clutch. Background Art

[0002] The application of clutch is very common in various mechanical equipments. The known clutch has a structure that is either too complicated or has too large components, which is not suitable for application in some small devices.

[0003] In the prior art, when using small machines, such as seed drills, multiple clutches are often required to control whether each row of land is to be sown, which is very cumbersome. Therefore, it is necessary to design a simple clutch and a seed drill using the simple clutch. Utility Model Content

[0004] Based on this, it is necessary to provide a simple clutch and a seed drill using the simple clutch in order to solve the above-mentioned technical problems.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a simple clutch, including a driving shaft and a driven shaft sleeve, the driving shaft is rotatably connected to the driven shaft sleeve, the driving shaft is located in the driven shaft sleeve, an annular clamping block is installed on the driving shaft, the annular clamping block is rotatably connected to the driven shaft sleeve, the driven shaft sleeve is slidably clamped with a driven annular clamping block, the driven annular clamping block and the annular clamping block are arranged in cooperation with each other through a clamping mechanism, and a limiting mechanism is provided on the driven annular clamping block to prevent the driven annular clamping block from moving.

[0006] Preferably, the clamping mechanism comprises a serrated clamping groove and a clamping block, a plurality of serrated clamping grooves are arranged at one end of the annular clamping block close to the driven annular clamping block, and a clamping block adapted to the serrated clamping groove is provided on the driven annular clamping block.

[0007] Preferably, a protective sleeve is installed on the driven annular clamping block.

[0008] Preferably, the limiting mechanism comprises a positioning column and two positioning holes, the positioning column is mounted on the protective sleeve, and the positioning holes are arranged on the driven shaft sleeve; when the positioning column abuts against the inner wall of one of the positioning holes, the driven annular clamping block is clamped with the annular clamping block.

[0009] In order to achieve the above purpose, the utility model provides a seed drill using a simple clutch, including a frame, the drive shaft is rotatably mounted on the frame, a plurality of driven shaft sleeves are provided on the drive shaft, and a rotating wheel is installed on the driven shaft sleeve.

[0010] Compared with the prior art, this technical solution has at least one of the following beneficial effects:

[0011] After the driven annular clamping block is pushed to slide on the driven shaft sleeve, the driven annular clamping block is clamped with the annular clamping block, and under the limit of the limit mechanism, the clamped driven annular clamping block and the annular clamping block are not easy to separate, and the operation is simple and convenient;

[0012] After the simple clutch is applied to the seeder, the driven annular clamping block can be meshed with the annular clamping block in various ways, so that the simple clutch is engaged and transmitted, so that when the seeder deals with narrow land, multiple rotating wheels will not rotate at the same time for sowing, thereby causing a waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front cross-sectional view of an embodiment of the utility model;

[0014] Figure 2 A three-dimensional diagram of an embodiment of the utility model without a protective cover;

[0015] Figure 3 It is a front cross-sectional view of another embodiment of the utility model;

[0016] Figure 4 Another embodiment of the present invention Figure 3 Enlarged view of point A in the middle;

[0017] Figure 5 It is a three-dimensional view of another embodiment of the utility model;

[0018] Figure 6 Another embodiment of the present invention Figure 5 Enlarged view of point B in the middle;

[0019] In the figure, 1, driving shaft; 2, driven shaft sleeve; 3, annular clamping block; 4, driven annular clamping block; 5, serrated clamping groove; 6, clamping block; 7, protective cover; 8, positioning column; 9, positioning hole; 10, frame; 11, rotating wheel. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0021] See also Figure 1 to Figure 2The embodiment of the present application provides a simple clutch, including a driving shaft 1 and a driven shaft sleeve 2, one end of the driving shaft 1 is transmission-connected to a driving source, which may be a motor, the driving shaft 1 is rotationally connected to the driven shaft sleeve 2, the driving shaft 1 is located in the driven shaft sleeve 2, an annular clamping block 3 is installed on the driving shaft 1, the annular clamping block 3 is rotationally connected to the driven shaft sleeve 2, a driven annular clamping block 4 is slidably clamped on the driven shaft sleeve 2, the driven annular clamping block 4 is cooperated with the annular clamping block 3 through a clamping mechanism, and a limiting mechanism is provided on the driven annular clamping block 4 to prevent the driven annular clamping block 4 from moving.

[0022] In this embodiment, the annular clamping block 3 is driven to rotate by the driving shaft 1. When the simple clutch needs to work, the driven annular clamping block 4 that is slidably clamped on the driven shaft sleeve 2 is pushed, so that the driven annular clamping block 4 is clamped with the annular clamping block 3 through the clamping mechanism. After clamping, the annular clamping block 3 can drive the driven shaft sleeve 2 to rotate through the driven annular clamping block 4, so that the simple clutch starts to engage and transmit.

[0023] In some embodiments, in order to facilitate the engagement of the driven annular clamping block 4 with the annular clamping block 3 after sliding, so that the simple clutch can engage for transmission, a clamping mechanism is provided including a serrated clamping groove 5 and a clamping block 6, and several serrated clamping grooves 5 are arranged at one end of the annular clamping block 3 close to the driven annular clamping block 4, and a clamping block 6 adapted to the serrated clamping groove 5 is provided on the driven annular clamping block 4.

[0024] In some embodiments, in order to facilitate the protection of the manually sliding driven annular clamping block 4, a protective sleeve 7 is installed on the driven annular clamping block 4. The length of the protective sleeve 7 is such that after the driven annular clamping block 4 is engaged with the annular clamping block 3, it can cover the periphery of the engagement.

[0025] In some embodiments, in order to make it easier for the driven annular clamping block 4 to be separated from the annular clamping block 3 after sliding, a limiting mechanism is provided, including a positioning column 8 and two positioning holes 9. The positioning column 8 is a retractable limiting column with a built-in spring in the prior art. The positioning column 8 is installed on the protective sleeve 7, and the positioning holes 9 are provided on the driven shaft sleeve 2. When the positioning column 8 abuts against the inner wall of one of the positioning holes 9, the driven annular clamping block 4 is clamped with the annular clamping block 3. When the driven annular clamping block 4 slides toward the annular clamping block 3, the positioning column 8 abuts against one of the positioning holes 9 for limiting. When the driven annular clamping block 4 is taken away from the annular clamping block 3, the positioning column 8 abuts against the other positioning hole 9 for limiting.

[0026] See also Figures 1 to 6The embodiment of the present application provides a seed drill using a simple clutch, including a frame 10, a rotary drive device is installed on the frame 10, the output end of the rotary drive device is connected to the drive shaft 1, the drive shaft 1 is rotatably installed on the frame 10, the output end of the rotary drive device is connected to the drive shaft 1, a plurality of driven shaft sleeves 2 are provided on the drive shaft 1, and a rotating wheel 11 is installed on the driven shaft sleeve 2.

[0027] In this embodiment, the rotating wheels 11 installed on several driven shaft sleeves 2 correspond to several sowing paths on the seeder. When the sowing area is narrow, the driven annular clamping block 4 will no longer be engaged with the annular clamping block 3 for transmission, so that the rotating wheel 11 on the sowing path here will no longer rotate for sowing. Therefore, by installing a simple clutch, the seeder can simply and conveniently control the sowing row.

[0028] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0029] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A simple clutch, comprising a driving shaft (1) and a driven shaft sleeve (2), characterized in that: The driving shaft (1) is rotatably connected to the driven shaft sleeve (2), the driving shaft (1) is located inside the driven shaft sleeve (2), an annular clamping block (3) is mounted on the driving shaft (1), the annular clamping block (3) is rotatably connected to the driven shaft sleeve (2), a driven annular clamping block (4) is slidably clamped on the driven shaft sleeve (2), the driven annular clamping block (4) and the annular clamping block (3) are arranged in cooperation with each other via a clamping mechanism, and a limiting mechanism is provided on the driven annular clamping block (4) for preventing the driven annular clamping block (4) from moving.

2. The simple clutch according to claim 1, characterized in that: The clamping mechanism comprises a sawtooth clamping groove (5) and a clamping block (6); the plurality of sawtooth clamping grooves (5) are arranged at one end of the annular clamping block (3) close to the driven annular clamping block (4); and the driven annular clamping block (4) is provided with a clamping block (6) adapted to the sawtooth clamping grooves (5).

3. The simple clutch according to claim 1, characterized in that: A protective sleeve (7) is installed on the driven annular clamping block (4).

4. The simple clutch according to claim 3, characterized in that: The limiting mechanism comprises a positioning column (8) and two positioning holes (9); the positioning column (8) is mounted on the protective sleeve (7), and the positioning holes (9) are arranged on the driven shaft sleeve (2); when the positioning column (8) abuts against the inner wall of one of the positioning holes (9), the driven annular clamping block (4) is clamped with the annular clamping block (3).

5. A seed drill using a simple clutch, comprising a simple clutch and a frame (10), characterized in that: The simple clutch is a simple clutch as claimed in any one of claims 1 to 4, wherein the driving shaft (1) is rotatably mounted on a frame (10), a plurality of driven shaft sleeves (2) are provided on the driving shaft (1), and a rotating wheel (11) is mounted on the driven shaft sleeve (2).

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